Okay, we all know one, or have been one at least once in our lives.
Water fountain hog: someone who sits there and drinks the water from the water fountain for fifty years, and everyone else had shriveled up and died by the time they were done.
Yes okay, we get it. You're thirsty. But honestly, what happened to 1,2,3, next person.
Seriously dude. Water bottles were invented for a reason.
While you're satisfying your thirst, and there are like fifty other people behind you slowly dying because you've been drinking for centuries.
Moral of the story; bring a water bottle!!